Surgery for kidney stones on both sides at the same time
Official title: Evaluation of Efficacy and Safety Profile of Bilateral Synchronous Simultaneous Stone Surgery for Kidney Stones
Run by Marmara University · NCT03599297 · Data updated 2026-05-14
This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.
This study is testing whether doing kidney stone surgery on both sides at the same time can be safe and effective for patients with stones in both kidneys.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Marmara University Academic / other |
| Locations | 1 site (Istanbul) |
| Trial ID | NCT03599297 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients scheduled for kidney stone surgery who have bilateral kidney stones.
✕Probably not a fit
Patients with unilateral kidney stones or those not scheduled for surgery may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study evaluates the outcomes of bilateral synchronous simultaneous stone surgery (BSSSS) in patients with bilateral kidney stones. The approach aims to perform both surgeries concurrently to reduce the number of operations and overall surgical time. Patients will undergo supine percutaneous nephrolithotomy (PCNL) and retrograde intrarenal surgery (RIRS) as part of the intervention. The study seeks to assess the effectiveness and safety of this innovative surgical technique.
Why it matters
Potential benefit: If successful, this approach could lead to fewer surgeries and shorter recovery times for patients with kidney stones.
How similar studies have gone: While the concept of simultaneous surgeries is gaining traction, this specific approach is relatively novel and has not been extensively tested in prior studies.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * patients scheduled for kidney stone surgery according to European Association Urology, Urolithiasis guidelines * patients with bilateral kidney stones Exclusion Criteria: * none
Where it's running
-
Marmara University Hospital
Istanbul, Turkey Recruiting
Study contacts
- Principal investigator: Yiloren Tanidir, Ass. Prof. — Marmara University, School of Medicine, Department of Urology
- Study coordinator: Yiloren Tanidir, Ass. Prof.
- Email: yiloren@yahoo.com
- Phone: 00905325694275
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Suction vs Conventional Ureteral Access Sheaths in Kidney Stone Surgery
This study tests whether using a suction ureteral access sheath during RIRS helps adults clear stones more often and potentially reduces operative time and infections compared with a conventional sheath.
-
Audio consent with human voice or AI-voice added to written consent for ureteroscopy
This study tests if listening to an audio version of the consent form, read by a real urologist or by an AI-cloned voice, helps adults in Turkey understand their ureteroscopy or RIRS consent better than the written form alone.
-
Nephrostomy Tract Infiltration to Ease Pain After Percutaneous Nephrolithotomy
This trial tests whether injecting local anesthetic into the nephrostomy tract after PCNL helps reduce postoperative pain for adults undergoing the procedure.
-
Gentamicin Irrigation and Suction Ureteral Access in Kidney Stone Surgery
This trial tests whether using gentamicin-containing irrigation fluid and a suction-enabled ureteral access sheath during retrograde intrarenal surgery (RIRS) can lower fever, SIRS, and sepsis after kidney stone treatment.
-
Using a flexible suction sheath with flexible ureteroscopy for lower-pole kidney stones
This trial will test whether adding a flexible, navigable suction sheath to flexible ureteroscopy helps adults with lower-pole kidney stones become stone-free more often and avoid repeat procedures.
-
Prednisone after ureteroscopy with stent to reduce postoperative pain
This study will try a short course of prednisone after ureteroscopy with a ureteral stent to reduce postoperative pain in adults with kidney or ureteral stones.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.